Mattress Size Guide

Use our mattress size chart to make sure the mattress you’re buying is the right size for the bed frame and room it’s intended for.

Depth measurements vary from mattress to mattress, so these can be found on the product pages under product information.

All our mattress sizes will fit on any UK standard sized beds.

Mattress	Small Single	Single	Small Double	Double	King	Super King	Emperor
cm W x L	75 x 190	90 x 190	120 x 190	135 x 190	150 x 200	180 x 200	200 x 200
feet W x L	2’3 x 6’3	3 x 6’3	4 x 6’3	4’6 x 6’3	5 x 6’6	6 x 6’6	6’6 x 6’6

SHOP ALL MATTRESSES

Tape measure at the ready!

SIZING TIPS

A mattress should be wide enough for you and your partner to lie side by side, hands behind heads, without elbows touching.

Mattress dimensions should be at least 10cm longer than the tallest person who’ll be sleeping on it

Whilst width and length measurements will be consistent, mattress depths can vary, so make sure you check!

Mattress Sizes Explained

What size is a small single mattress?

Perfect for young children or the spare room

Our small single mattresses are 75cm x 190cm, or 2’3 x 6’3 feet, and are designed to be used on narrow kids’ beds, guest beds or in small rooms. Explore our small single mattresses and single beds.

What size is a single mattress?

Perfect for one person to sleep on

Our single mattresses are 90cm x 190cm, or 3 x 6’3 feet, and are designed for use by one person or in smaller bedrooms. They also make great kid’s mattresses that accommodate them through to their teenage years. Explore our single mattresses and single beds.

What size is a small double mattress?

Perfect for one person to sleep on in smaller bedrooms

Our small double mattresses are 120cm x 190cm, or 4 x 6’3 feet, and are perfect for one person who wants a bit more room but doesn’t have the space for a full double. Two people can fit on a small double mattress but it will be cosy. Explore our small double mattresses and double beds.

What size is a double mattress?

Perfect for two people to sleep on and average sized bedroom

Our double mattresses are 135cm x 190cm, or 4’6 x 6’3 feet, and fit two people perfectly comfortably and are ideal for average sized bedrooms. Explore our double mattresses and double beds.

What size is a king size mattress?

Perfect for two people, taller people and for those who enjoy a little more space

Our king size mattresses are 150cm x 200cm, or 6 x 6’6 feet, and are longer than a standard double mattress making them perfect for taller people and those who enjoy a little more space. Explore our king size mattresses and king size beds.

What size is a super king mattress?

Perfect for two people who enjoy plenty of space to sleep, and for those with kids who like to come in for a cuddle!

Our super king size mattresses are 180cm x 200cm, or 5 x 6’6 feet, and provide space in abundance, perfect for those who like to luxuriate in plenty of room. Explore our super king mattresses and super king beds.

What size is an emperor mattress?

Perfect for two people, or the whole family, and for those who like to sleep in every position.

Our emperor mattresses are 200cm x 200cm, or 6’6 x 6’6 feet, and offer luxurious amounts of space for two people to sleep in every type of sleeping position. Explore our emperor mattresses and emperor beds.